| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United States | 3 | |
| #3 | German Democratic Republic | 2 | |
| #4 | Denmark | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Israel | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 | |
| #8 | Brazil | 1 | |
| #9 | Canada | 1 | |
| #10 | Spain | 1 | |
| #11 | Finland | 1 | |
| #12 | Greece | 1 | |
| #13 | Italy | 1 | |
| #14 | Republic of Korea | 1 | |
| #15 | Monaco | 1 | |
| #16 | Norway | 1 | |
| #17 | Portugal | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Electrotherapy | |
| #2 | Hairstyling and cosmetic | |
| #3 | Dentistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kerschgens Johann Josef | 18 |
| #2 | Kerschgens Johann J | 5 |
| #3 | Hirsch Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DD231989A5 | Irradiator with gas channel | |
| DD231990A5 | Irradiator with controller | |
| DE3245655A1 | UV irradiation device, preferably as an accessory arrangement for an electric hairdrier | |
| KR870002048B1 | Appliance for treatment of hair and scalp | |
| DE3232537A1 | Method and device for varying ultraviolet radiation | |
| DE3203723A1 | Mouth douche | |
| DE3123008A1 | TREATMENT DEVICE FOR HAIR AND SCALP SKIN |